L’Oréal Professionnel Serie Expert Keratin Alpha Sleek Shampoo 300ml

• When used with the full routine, it reprograms hair for up to 2 weeks of frizz control¹
• It controls unwanted volume for daily styling in half the time², adding softness and instant shine that lasts up to 5 days⁴
• Improves the hair’s health from the first use³
• The fragrance is Fig Leaf, Creamy Sandalwood, Orris and violet

¹Consumer test on 68 participants, 1 application/week for 4 weeks. Based on a 15-day break observation.

² Instrumental tests with routine 4 times of Shampoo + Smooth Transformer + Leave-on.

³Instrumental test after 1 application of shampoo, mask & serum.

⁴Instrumental test after 1 application of shampoo, mask & serum.

L’Oréal Professionnel Keratin Alpha Sleek Shampoo is expertly formulated to smooth, protect, and transform unruly hair into sleek, polished perfection. Designed for frizz-prone and chemically treated hair, this professional-grade shampoo gently cleanses while helping to maintain the results of keratin and smoothing treatments.

Enriched with advanced smoothing technology, it works to control flyaways, reduce excess volume, and enhance manageability from the very first wash. The lightweight yet nourishing formula helps reinforce the hair fibre, leaving hair feeling soft, supple, and easier to style. By sealing the cuticle and protecting against humidity, it supports long-lasting smoothness and shine without weighing the hair down.

Ideal for those seeking salon-quality results at home, Keratin Alpha Sleek Shampoo helps extend the life of straightening treatments while restoring a silky, glossy finish. Hair feels smoother to the touch, looks visibly healthier, and remains more resistant to frizz throughout the day.

For best results, use regularly as part of your smoothing haircare routine. Experience professional performance with every wash and enjoy beautifully sleek, manageable hair that looks effortlessly refined.